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NDT.net Issue: 2019-12
10th International Workshop NDT in Progress, Oct 7-9, 2019, Prague, Czech Republic (NDT in Progress 2019) | Vol. 24(12)
Special Issue of e-Journal of Nondestructive Testing (eJNDT) ISSN 1435-4934 Vol. 24(12)

Acoustic Emission Sources From Fast Dislocation Motion

Petr Hora, Anna Machová2, Jan Cerv2, Alena Uhnakova
Institute of Thermomechanics; Czech Academy of Sciences (CAS)115, Prague, Czech Republic

Abstract: Acoustic emission from the fast dislocations emitted from an edge crack in 3D bcc iron crystal is studied via atomistic simulations by molecular dynamics technique. Acoustic emission patterns arising from the fast dislocation motion in molecular dynamics are visualized via the local kinetic energies of individual atoms and further modeled as a moving source of the stress waves in the anisotropic continuum.

Keywords: Acoustic emission (311), edge crack, dislocation emission, free surface, bcc iron,
*Keywords are freely formed keywords from the authors and thus you may Search also for similar terms.

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Hora, P., Machová, A., Cerv, J., & Uhnakova, A. (2019). Acoustic Emission Sources From Fast Dislocation Motion. 10th International Workshop NDT in Progress, Oct 7-9, 2019, Prague, Czech Republic. e-Journal of Nondestructive Testing Vol. 24(12). https://www.ndt.net/?id=24795

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